<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>404</title>
    <style>
        html, body {
            padding: 0;
            margin: 0;
            height: 100%;
        }
        .box {
            width: 100%;
            height: 100%;
            background-color: wheat;
            text-align: center;  /*文本水平居中*/
            padding-top: 15%;
        }
    </style>
</head>
<body>

<div class="box">
    <h1>404 您进入了无人区...</h1>
    <span id="counter"></span>秒后 <a href="/login">返回登录首页</a>
</div>

<script>
        var $counter = document.getElementById('counter');
        function countDown(secs)
        {
            $counter.innerText=secs;
            if(--secs>0)
            {
                setTimeout("countDown("+secs+")",1000);
            }
            if(secs==0)
            {
                location.href = '/login';
            }
        }
        countDown(5);
    </script>

</body>
</html>